Buckle



FIG. 1 is a front view of a buckle showing my new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a left side view thereof, the right side view being symmetrical to the left side view;

FIG. 6 is a cross sectional view taken along line 6—6 in FIG. 1; and,

FIG. 7 is a perspective view thereof. 

The ornamental design for a buckle, as shown and described. 